Darendeliler M A, Darendeliler A, Mandurino M
Department of Orthodontics and Pedodontics, School of Dentistry, University of Geneva, Switzerland.
Eur J Orthod. 1997 Aug;19(4):431-42. doi: 10.1093/ejo/19.4.431.
Over the last decade magnets have been used in orthodontic and dentofacial orthopaedics and attempts have been made to evaluate the biological implications of magnets and magnetic fields during clinical application. This review aims to indicate the advantages and disadvantages of magnets in orthodontics and dentofacial orthopaedics over traditional techniques, and update related clinical experiences. The treatment of impacted teeth and Class II malocclusions by means of magnetic force is favoured and the correction of Class III and open bite malocclusions involving the use of magnets also appears promising. The advantages of magnets over traditional force delivery systems are: frictionless mechanics, when the magnets are in attractive configuration; predictable force levels, no force decay over time and less patient co-operation. However, the size of the magnets can increase the bulk of the appliance and three-dimensional control is limited when the magnets are in a repulsive configuration. In addition magnets used in vivo require a coating to prevent corrosion and the possible side effects of corrosive products.
在过去十年中，磁体已被应用于正畸和牙颌面正畸领域，并且人们已尝试评估磁体和磁场在临床应用过程中的生物学影响。本综述旨在指出磁体在正畸和牙颌面正畸领域相对于传统技术的优缺点，并更新相关临床经验。借助磁力治疗阻生牙和安氏II类错牙合受到青睐，使用磁体矫正安氏III类错牙合和开牙合畸形似乎也很有前景。磁体相对于传统力传递系统的优点包括：当磁体处于吸引配置时，力学无摩擦；力水平可预测，力不会随时间衰减，且患者配合度较低。然而，磁体的尺寸可能会增加矫治器的体积，并且当磁体处于排斥配置时，三维控制有限。此外，体内使用的磁体需要涂层以防止腐蚀以及腐蚀性产物可能产生的副作用。
